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A method for adding alloying elements to molten aluminum and an alloying element adding bag

A technology of alloying elements and aluminum alloys, which is applied in the field of alloying element adding bags, and can solve problems such as the limitation of mini cake production rate

Inactive Publication Date: 2011-12-28
SHENZHEN FORAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, productivity is limited when producing mini-cakes

Method used

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  • A method for adding alloying elements to molten aluminum and an alloying element adding bag
  • A method for adding alloying elements to molten aluminum and an alloying element adding bag

Examples

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Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1 As shown, the aluminum foil bag for encapsulating additives is made of polyester / aluminum foil / polyethylene composite film. The size of the aluminum foil bag is 150X180 mm. The melted molten iron is atomized into iron powder by the existing technology, or the atomized iron powder is purchased from outside, with a particle size of 0.1-1.0 mm, and a small amount of fine powder is allowed. Weigh 1000 grams of powder and put it into an aluminum foil bag, then vacuumize it, heat seal it, and press the sealed aluminum foil bag into a solid block through the pressure difference between the inside and outside of the aluminum foil bag.

Embodiment 2

[0026]Embodiment 2: The aluminum foil bag for packaging additives is made of paper / aluminum foil / polyethylene composite film. The size of the aluminum foil bag is 150X200mm. Grind the electrolytic manganese flakes into powder with existing technology, or purchase manganese powder, atomize molten aluminum into aluminum powder with existing technology, or purchase aluminum powder. The particle size of manganese powder and aluminum powder is 0.1-1.0 mm, and a small amount of fine powder is allowed. Mix 85% manganese powder and 15% aluminum powder evenly, weigh 1.18 kg of powder and put it into an aluminum foil bag, then vacuumize it, heat seal it, and press the sealed aluminum foil bag through the pressure difference between the inside and outside of the aluminum foil bag. Into a solid block. The finished additive bags are 1.18 kg per bag, and the manganese element content in each bag is 1.0 kg. 20 bags per carton. This is very convenient in actual alloying operations.

Embodiment 3

[0027] Embodiment 3: The aluminum foil bag for encapsulating the additive is made of polyester / aluminum foil / polyethylene composite film. The size of the aluminum foil bag is 200X300mm. Purchase reduced iron powder and potassium fluoroaluminate powder for industrial use. The particle size of iron powder and potassium fluoroaluminate powder is both 0.1-1.0 mm, and a small amount of fine powder is allowed. Mix 80% iron powder and 20% potassium fluoroaluminate powder evenly, weigh 2500 grams of powder and put it into an aluminum foil bag, then vacuumize it, heat-press and seal it, and through the pressure difference between the inside and outside of the aluminum foil bag, the packaged Aluminum foil bag pressed into a firm block. The finished additive bags are 2500 grams per bag, and the iron content in each bag is exactly 2000 grams.

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Abstract

The invention discloses a method for adding alloy elements in the melting and casting process of the aluminum industry and an alloy element adding bag used for adding alloy elements. The method is as follows: the alloy element powder to be added is packed into an aluminum foil bag, and vacuum-packed, and the alloy element added bag is dropped into the aluminum liquid. The structure of the alloying element addition bag is that the aluminum foil bag is used to contain the alloying element powder required for the aluminum alloy production, and the inside of the bag is vacuumed. The invention can significantly increase the melting speed of alloy elements, improve production efficiency and reduce production cost.

Description

technical field [0001] The invention relates to a method for adding alloy elements in an aluminum alloy melting and casting process and an alloy element adding bag for adding alloy elements. Background technique [0002] In the production process of aluminum alloy, it is often necessary to add a small amount of alloying elements such as manganese, iron, silicon, magnesium, and copper to achieve the required chemical composition. The addition of these alloying elements is mainly carried out through master alloys or alloying element powders. Since the content of alloying elements in the master alloy is low, generally 5-25%, the cost of alloying is relatively high. Therefore, the use of alloying element powders is becoming more and more common. [0003] At present, in the casting process of aluminum alloy, there are two main methods of adding metal powder into molten aluminum: one is to add pure metal powder by spraying method; the other is to mix metal powder and other fluxe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C21/00B65D30/02
Inventor 刘玉林
Owner SHENZHEN FORAL TECH
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